The 2020 Colorado wildfire season was a series of significant wildfires that burned throughout the U.S. state of Colorado as part of the 2020 Western United States wildfire season. With a total of 665,454 acres (269,300ha) burned, and the 3 largest fires in state history, it is Colorado's largest wildfire season on record.[4]
During this season, the Cameron Peak Fire burned 208,913 acres, making it the largest wildfire recorded in the state of Colorado after it surpassed the Pine Gulch Fire, which earned the title seven weeks prior.[5][6] Also surpassing the Pine Gulch Fire in size was the East Troublesome Fire, which, when fully contained on November 30, had burned a total of 193,812 acres. In total, the suppression costs for the fires during the 2020 season amounted to at least $266 million (2020 USD). Throughout the year thousands of people were forced to evacuate, including the whole town of Estes Park during the East Troublesome fire. Air quality was poor as well through much of the fire season, especially during the Cameron Peak and East Troublesome fires.[3]
While "fire season" varies every year based on different weather conditions, most wildfires occur between May and September with a fire risk year-round with an increasing danger during winter. Drought and decreasing snowpack levels and lowering snowmelt and runoff increase fire risk. These conditions, along with increased temperatures and decreased humidity, are becoming more common from climate change. Vegetation growth provides an ample fuel for fires. From 2011 to 2020, Colorado experiences an average of 5,618 wildfires each year that collectively burn about 237,500 acres (96,100ha).[7]
List of wildfires
The following is a list of fires that burned more than 1,000 acres (400ha), or produced significant structural damage or casualties.
Caused by lightning. It was the largest wildfire in Colorado history until it was surpassed by the Cameron Peak Fire seven weeks later. 6 structures destroyed
Unknown cause, 580 structures destroyed, 2 fatalities.[2] As it underwent an explosive burst of growth on October 21, the fire created a huge pyrocumulonimbus cloud that rose to about 40,000ft (12,000m).[32]
↑Containment means that fire crews have established and secured control lines around the fire's perimeter. These lines are artificial barriers, like trenches or cleared vegetation, designed to stop the fire's spread, or natural barriers like rivers. Containment reflects progress in managing the fire but does not necessarily mean the fire is starved of fuel, under control, or put out.[8]
